Paper magazine for recording paper roll and recording paper roll

Abstract

A roll of a recording paper is rotatably contained in a paper magazine. The magazine is provided with a mouth through which the recording paper is drawn out and fed to a printer. A leading edge of the recording paper, is adapted to come into contact with an outer periphery of the roll by a contacting device. The remainder of the roll is indicated by an indicating device. The mouth of the magazine is opened and closed with a shutter unit. The inside of the magazine tightly closed with the shutter unit is kept at constant humidity by a humidity conditioning paper. On the other hand, the roll is caught between a pair of flanges. One of the flanges is biased by plate springs toward the other of the flanges so that the roll is held in the magazine without looseness.

What is claimed is:  
     
       1. A thermal recording paper roll in which a thermal recording paper is wound as a roll, said thermal recording paper being optically fixed by ultraviolet and color property of which alters according to change of humidity, said thermal recording paper roll comprising: 
       a core made of humidity conditioning material for winding said thermal recording paper, said humidity conditioning material absorbs moisture in case of high humidity and performs humidification in case of low humidity.  
     
     
       2. A thermal recording paper roll according to claim  1 , wherein said humidity conditioning material is a humidity conditioning paper in which porous materials are kept among cellulose fibers.